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Finding the Fourth Proportional to 253,175.77, 379,950.56 and 120,056.47

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Solution

The fourth proportional to 253,175.77, 379,950.56 and 120,056.47 is: 180,173.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,175.77 : 379,950.56 = 120,056.47 : x
  2. Step 2: Convert to fraction form
    253,175.77/379,950.56 = 120,056.47/x
  3. Step 3: Cross multiply
    253,175.77x = 379,950.56 × 120,056.47
  4. Step 4: Simplify right side
    253,175.77x = 45,615,522,358.39
  5. Step 5: Solve for x
    x = 45,615,522,358.39/253,175.77
  6. Step 6: Final answer
    x = 180,173.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.